Jump to content
SAU Community

R32 gtst swapped rb26dett

Brianna-32
 Share

Recommended Posts

Brianna-32 Newbie

Brianna-32

Posted
Posted (edited)

Hello,

So I just recently bought a rb26dett for my 1992 r32 gtst. I've been told I need I'll need a new cross member and drive shaft to make it fit, I know I needed a new shaft but didn't know about the cross member. What cross member will fit for a rb25 trans to a 26 motor? And what drive shaft would be best? I am also having trouble finding an adapter plate. Any info would be greatly appreciated 

Edited by Brianna-32
Link to comment
https://www.sau.com.au/forums/topic/482926-r32-gtst-swapped-rb26dett/
Share on other sites
GTSBoy Grand Master

GTSBoy

Posted
Posted

You don't need a new crossmember. The GTR crossmember cannot be put into the RWD chasssis anyway.

You just need engine mounts, and I'm pretty sure your RB20 ones will fit. If they don't google up what other people have done. It's not hard.

What gearbox are you going to use? Don't say the GTR gearbox, because it won't fit. It just won't fit. Don't even think about it. And don't say you're going to use the RB20 gearbox, because it won't survive. The RB26 makes more torque than the little box can handle.

You will need an RB25DET gearbox. And then you will need the front half of a tailshaft to suit, and then you will need to take your R32 tailshaft and the front half of the (likely R33) shaft and some careful measurements to a drive/shaft manufacturer (like Hardie Spicer) and get them cut and shut together.

There is no other way to do the tailshaft properly. Nothing off the shelf will work.

RB25DETonation Apprentice

RB25DETonation

Posted
Posted

/\ You'll need to cut the diff off the 26 sump & usually grind the fins on the bottom a bit to clear the gtst xmember.

You can cut the transfer off the 26 box & use it but no point if you have a 25 box, not sure what adaptor plate you're looking for, bell housings are same

  • 1 month later...
corbic Apprentice

corbic

Posted
Posted

Don't hack up the 26-parts, you can sell the sump, diff and trans for a pretty penny. 

Neo RB25 5spds are still available new and you can always grab a used RB25 Trans. They also make adapter plates to run a modified CD09 out of a Z33/Z34 and you can get bellhousings for the T-56 / Magnum. 

 

 

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • funkymonkey
      R32 Nostalgia

      By funkymonkey · Posted

      Yeah, hard to find and a pain in the ass to change with the transverse engine. I’ve worked on a GTiR before and it’s not a job I’d ever want to do again. theres a company in South Africa that makes RS3 gearbox adaptors for the AWD SR20 including gearbox mounts, so I could modernise it and go a dual clutch with paddles. For now tho, it ticks all the boxes. Super cheap, can throw the kids and their junk in the back, and SR20 that I can turbo cheaply, a CVT that’s not a dog’s breakfast like the V35, and has 80% interchangeable parts with stuff I can source from the wreckers cheaply…. But it’s still unique. I love the wagon back of the Autech version. It’s cheap enough that I can buy another stock manual FWD Primera with SR20VE, swap the gearbox to the N15 pulsar short gear ratio box, swap out the brakes to the R32 ones I pulled off my 32, register it on club plates and take it racing. $1300 shipping from NZ. Heaps of parts and aftermarket builders for transverse SR20’s in NZ.
    • joshuaho96
      New R32 owner soon

      By joshuaho96 · Posted

      Hard to say, just pop the rocker covers off and have a look if you think it's cammed. You probably need to replace the valve cover gasket/half moons anyways.
    • niZmO_Man
      R32 Nostalgia

      By niZmO_Man · Posted

      From my youth: GTi-R clutch change is a massive pain. The gearboxes are fragile? But the car is super cool and I want one 😢 
    • niZmO_Man
      New R32 owner soon

      By niZmO_Man · Posted

      Remember this is 1988 tech.
    • TurboTapin
      R32 GTST - 600KW+ RB28/CD009 Build

      By TurboTapin · Posted

      Driveline vibration is resolved. I ended up loosening all my engine mount and trans mount bolts, giving it a good shake then retightening everything and it's gone... Let's just say I was surprised that fixed it.  I've been happily driving it around again but unfortunately put zero time into my direct port/constant pressure WMI setup. I'm on vacation next week, so I'll try and finalize it then.  On a different note, I spent all week fuel/ignition mapping 2x 216L V16 engines. Turbo's were burning glycol and we swapped them out for larger units. We also had planned emissions testing on site, so I figured I'd be there the same week to use their instrumentation and massage any emissions issues out if needed. This was a first for me. Fuel management is similar in certain ways to automotive (i.e air density as load variable) but very different in others. It's all PLC based and AFR's are controlled by air and not fuel. They use a control valve between the turbo and air manifold to control pressure which in turn controls AFR's. Due to this, target AFR tables supplied by the OEM are in pressures and not mass which really through me off. They use air pressure vs fuel pressure tables. I also relied on an O2 concentration sensor the emissions team had in the exhaust. Ignition timing was also all over the place and we were losing a fair bit of power. They're now happily sitting at 16-40BTDC depending on load. We were making about 1600kw at 900rpm at 90% load. Engines were running a lot smoother as well.    
×
×
  • Create New...